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- This WPT test may be referenced by the following Test IDs:
- /css/css-counter-styles/cssom/cssom-fallback-setter.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<title>CSSCounterStyleRule fallback setter</title>
<link rel="help" href="https://www.w3.org/TR/css-counter-styles-3/#the-csscounterstylerule-interface">
<link rel="author" href="mailto:xiaochengh@chromium.org">
<link rel="match" href="cssom-fallback-setter-ref.html">
<style id="sheet">
@counter-style foo {
system: fixed;
symbols: A B;
}
</style>
<ol style="list-style-type: foo; list-style-position: inside">
<li></li>
<li></li>
<li></li>
</ol>
<script>
// Force layout update before changing the rule
document.body.offsetWidth;
const sheet = document.getElementById('sheet');
const foo_rule = sheet.sheet.rules[0];
foo_rule.fallback = 'lower-roman';
</script>